It was in 1979. By Um Bunrith, BBU student in Preah Sihanouk Province
when agriculture became popular throughout the major river valley civilizations
Pesticides are a major threat to amphibians.
CFC's are a major threat to ozone. They react with ozone to deplete it.
Hannibal was not the major foreign threat to Rome, although he was a major threat at his time. The Romans also had threts from the Gauls, Germans, Parthians, Panonians, and the Dacians, to name a few.
It would be difficult to determine the "biggest" threat to kiwi. Major threats are introduced animals such as dogs, cats and stoats. However, were it not for habitat loss, these animals would not be such a major threat.
The 3 major types of health is Emotional Health, Social Health, and Physical Health.
The major threat towards humpback whales would be human disturbances.
Xiongnu
Aaron Neville, the American singer, has had some health issues throughout his life. One major health problem he faced was in the late 1990s when he was diagnosed with lung cancer. However, he successfully underwent treatment and survived the illness.
a protsetant rebellion in Spain
Not likely. However, that person you kissed better get some antibiotics or it will spread throughout his/her system causing some major health problems.
There are no major health concerns with coffee at all.